Percolator top



Patented Eco. 18, 1928.

wi IiIAMr. CONRADT, or DAVENPORT, Iowa.

rnnooim'ron Tor.

Application filed Marcht, 1923. Serial No. 259,164.

My present invention relates to tops for percolators and more especiallyto means for preventing same from accidentally'dropplng out of thepercolator cover and either becoming broken, themselves or breaking someother dish. Among the objects of the invention are to provide 'apercolator top with means which will prevent the top from be comingaccidentally detached from the per colator cover and droppingwithout'w'arning to the person using same; to provide a device of thekind indicated in which is provided means such that the top may becomepartially detached from the cover without being able to drop when thepercolator is tilted into posit-ion to discharge the contents thereof;to provide means whereby the opening 1n a percolator cover may beexpanded slightly so as to permit the insertion of the pereolator topwithoutsaid top being unduly tight in the cover; and such furtherobjects, advantages and capabilities as will hereafter appear and as areinherent in the construction disclosed. 7

In the drawing annexed hereto and forming a part hereof, Fig. 1 shows inelevation a per-colator top embodying my invention and,

in dotted outline the cover with which the top is used; Fig. 2 shows abottom plan view of the structure shown in Fig. 1 Fig. 3 is a horizontalsection substantially along the plane indicated by the line 3-3, Fig. 1.

Referring more in detail to the annexed drawing, numeral 1 designatesthe customary cover for a. percolator which has a generally centrallyarranged opening provided with an inwardly turned flange 2. This flangeis provided with indentations forming grooves 3 for the reception of theprojections t and 5 upon the flange 6 of the top 7 This top is providedwith a suitable ridge 8 around the periphery thereof to rest upon thecover and prevent the top from sliding into the cover farther than thepredetermined distance.

The top is provided with a knob 9 whereby it may be grasped and turnedor lifted. Such tops are customarily hollow as shown by dotted lines inFig. 1. .Projections 10 are formed upon the top, preferably by cuttingaway a portion of the shoulder to form somewhat rounded partsas'indicated in cross section in idig. 3. The purpose of these lugs orprojections 10 is to enable the user to expand the opening surrounded bythe flange 2 if the same should be alittle too small,- thus tendingpercolator top, which is customarily made of glass. It will beunderstood that by inverting the top, holding itby the flange 6, inserting the small end of thetop through the open ing in the flange 2 andthen simultaneously pushing and turning, the lugs '10 can be caused toexpand the opening slightly, thus making it 'possible'to easily insertthe flange 6 through the opening.

However, after the lugs 4 have passed through the grooves 3 in theflange, the lugs to bind and possibly crack the flange 6 of'the out.However, in course of use, the top often gets turned until the lugs comeinto alignment with the grooves. When this takes place, the top may dropout of the cover and fall upon a cup or other dish and cause breakingthereof or of the top. Also, in the handling of the percolator, whenempty, the top may become detached and fallupon the floor, thus beingbroken. With this construction, however, the user will have a warningthat there is danger of the top becoming detached and falling,'for thereason that when the lugs 5 pass through the grooves 8, the lugs {i willengage the flange 2 and thereby prevent the top from falling. The topwill project an undue amount from the cover, thus giving the user thenecessary warning. top can then be pushed back into place and rotateduntil the lugs 5 will prevent thetop from becoming detached or partiallydetached from the cover. I I

While I have disclosed this invention as used in connection withpercolators, it is possible that it may have other uses and I thereforedo not wish to be limited to the use stated.

Also, theproportion and arrangement of parts may be varied withincertain limits without departing-from the spirit of this invention. Forinstance, the lugs 41- and 5 may be spaced laterally farther apart andthe distance of these from each other, longitudinally of the flange 6,will depend upon the width ofthe flange 2, it being necessary that therebe sufiic-ient space between the lugs The peroolator I 4t and 5,longitudinally of the flange, to perlnit the flange 2 to pass betweenthese two lu s. flaving now described my invention, I claim:

1. A percolator top having a flange for insertion into a percolatorcover, said flange having holding lugs on its exterlor surface,

' and said lugs being spaced longitudinally and transversely of theflange.

2. A percolator top having a flange for 'insertion into a percolatorcover, said flange having pairs of holding lugs on its exterior surfaceto cooperate with a flange of the curing lugs on the exterior surface ofthe flange, said lugs being so arranged that the top may be insertedinto the cover part Way and must then be turned part of a revolutionbefore it can be inserted the remainder of the Way.

4. A percolator top having an external cylindrical surface and aplurality of pro jections adjacent said surface Which may be caused toengage the Wall of an opening with Which the top is to cooperate andthus cause enlargement of the opening.

5. A percolator cover having 'a'substantially central opening therein,in combination With a top to fill said opening, said top havingprojections adjacent av cylindrical Wall of the top, said projectionsbeing adapted to be forced to turn With the top in the opening tothereby enlarge said opening.

In Witness whereof, I hereunto subscribe my name to this specification.

WM. F. CONRADT.

